Tree_anchor<Data, Window>

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CGAL::Tree_anchor<Data, Window>

Definition

Tree_anchor is also derived from Tree_base. Therefore, it provides the same methods as Range_tree_d and Segment_tree_d, but does nothing; it can be used as a recursion anchor for those classes. Therefore, instantiate Sublayer_type of Range_tree_d (Segment_tree_d respectively) with Tree_anchor and the container classes for the data items (Data and Window).

Definition

Tree_anchor<Data, Window>::Data
	container Data.

Tree_anchor<Data, Window>::Window
	container Window.

Creation

#include <CGAL/Tree_base.h>

Tree_anchor<Data, Window> a;

Operations

template<class OutputIterator>
OutputIterator	a.window_query ( Window win, OutputIterator result)


template<class OutputIterator>
OutputIterator	a.enclosing_query ( Window win, OutputIterator result)


bool	a.is_valid ()	returns true;

Protected Operations

bool	a.is_inside ( Window win, Data object)
		returns true.

bool	a.is_anchor ()	returns true.

Example

The following figures show a number of rectangles and a 2-dimensional segment tree built on them.



Two dimensional interval data.			Two dimensional segment tree according to the interval data.

Navigation: Up Table of Contents Package Overview Bibliography Index Title Acknowledging CGAL

CGAL Open Source Project. Release 4.2. 7 March 2013.